Robert R. Vanderzwaag, M.D.
Family Medicine Physician · Mishawaka, IN
Robert R. Vanderzwaag, M.D. is a family medicine physician with a practice address in Mishawaka, Indiana, and NPI 1811996846, issued on Jul 20, 2005. Check the license (Indiana 01048973A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Robert R. Vanderzwaag
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 01048973A IN
Self-reported in NPPES; status is on the state search - Practice location
- 5314 Lincolnway East, Mishawaka, IN 46544
- Phone
- (574) 256-9032
- Enumerated
- Jul 20, 2005
- Record last updated
- Jan 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (574) 256-9049
- Medicaid ID
- 200147150A IN
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,506 in Indiana → Look up another NPI →
Verify Robert R. Vanderzwaag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01048973ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
455 Medicare Part D claims for 45 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Amlodipine Besylate33 claims
- Albuterol Sulfate Hfa31 claims
- Alprazolam26 claims
- Dextroamphetamine-Amphetamine23 claims
- Lisinopril22 claims
- Losartan Potassium22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $308.48
15 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Robert R. Vanderzwaag among 3,506 family medicine physician records in Indiana
Robert R. Vanderzwaag, M.D. is one of 3,506 family medicine physician records with a practice address in Indiana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2011 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 family medicine physician records list a practice address in Mishawaka
They are 48 of the 1,454 NPPES records with a practice address in Mishawaka, and 3,506 family medicine physician records in Indiana.
All 3,506 in Indiana → Every provider in Mishawaka → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Bulger, M.D.Mishawaka, IN 465441821123035
- Joseph Caruso, M.D.Mishawaka, IN 465441598763203
- Shaukat Chaudhry, M.D.Mishawaka, IN 465441871541110
- Dale Deardorff, M.D.Mishawaka, IN 465441043266653
- Janet Galanes, M.D.Mishawaka, IN 465441235178856
- Laura Helman, DOMishawaka, IN 465441558313452
- Katherine Lisoni, MDMishawaka, IN 465441780601351
- Charles Myers, M.D.Mishawaka, IN 465441891781852
Common questions
What is Robert R. Vanderzwaag, M.D.'s NPI number?
Robert R. Vanderzwaag, M.D.'s National Provider Identifier (NPI) is 1811996846, issued on Jul 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Robert R. Vanderzwaag, M.D. located?
The NPPES record lists a practice address at 5314 Lincolnway East, Mishawaka, IN, 46544. Phone: (574) 256-9032. Providers update this record themselves, so call before visiting.
How can I verify Robert R. Vanderzwaag, M.D.'s license?
NPPES lists Indiana license number 01048973A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert R. Vanderzwaag, M.D. prescribe under Medicare Part D?
In 2024, Robert R. Vanderzwaag, M.D. had 455 Medicare Part D claims for 45 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.